Ask23: Don't be too defensive there.... I've done the flight from CNS to BNE, and I have also done the testing. There would be no way that I would consider doing both on the same day.
Plenty of sacrifices to be made if you wish to progress through the college and field. I believe that if you can't fork out for a cheap hotel and another half day off to be prepared then maybe it is not the best time.
Perhaps not "utter madness", but don't you want to give yourself every opportunity?